17.05 - Process Scheduling: Process Pending Wait Time Columns - Teradata Database

Teradata Vantageā„¢ - Resource Usage Macros and Tables

prodname
Advanced SQL Engine
Teradata Database
vrm_release
17.00
17.05
created_date
June 2020
category
Administration
User Guide
featnum
B035-1099-170K

These columns identify the how long the processes were blocked for each possible reason listed below.

Since this time is only accounted for when a blocked process leaves the blocked state, it is possible for this statistic to be much larger than the amount of time available to all processes in a single log period.
Column Name Mode Description Data Type
ProcWaitDBLock count Total time in centiseconds processes were blocked pending database locks. FLOAT
ProcWaitFsgLock count Total time in centiseconds processes were blocked pending an FSG lock. FLOAT
ProcWaitFsgRead count Total time in centiseconds processes were blocked pending an FSG read from disk. FLOAT
ProcWaitFsgWrite count Total time in centiseconds processes were blocked pending an FSG write to disk. FLOAT
ProcWaitMemAlloc count Total time in centiseconds processes were blocked pending memory allocations. FLOAT
ProcWaitMisc count Total time in centiseconds processes were blocked pending miscellaneous events. FLOAT
ProcWaitMonitor count Total time in centiseconds processes were blocked pending a user monitor. FLOAT
ProcWaitMonResume count Total time in centiseconds processes were blocked pending a user monitor resume from a yield. FLOAT
ProcWaitMsgRead count Total time in centiseconds processes were blocked pending non-step work. FLOAT
ProcWaitNetThrottle count Total time in centiseconds processes were blocked pending delivery of outstanding outgoing messages. FLOAT
ProcWaitPageRead count Total time in centiseconds processes were blocked pending a page read from disk. FLOAT
ProcWaitTime count Total time in centiseconds processes were blocked pending some amount of elapsed time only. FLOAT
ProcWaitQnl count Total time in centiseconds processes were blocked pending a TSKQNL lock. FLOAT
ProcWaitSegLock count Total time in centiseconds processes were blocked pending a disk or task context (for example, scratch, stack, and so on) segment lock. FLOAT